Results 31 to 40 of about 706,236 (203)
Simulations of weak gravitational lensing – II. Including finite support effects in cosmic shear covariance matrices [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 (Abridged) We investigate and quantify the impact of finite simulation volume on weak lensing two- and four-point statistics. These {\it finite support} (FS) effects are modelled for several estimators, simulation box sizes and source redshifts, and validated against a new large suite of 500 $N$-body simulations.
Harnois-Déraps, J, van Waerbeke, L
openaire +2 more sources
Weak Lensing, Shear and the Cosmic Virial Theorem in a Model with a Scale-Dependent Gravitational Coupling [PDF]
General Relativity and Gravitation, 1997 Footnote and references added. Version to in Gen. Relativity and Gravitation Vol. 29 (1997)
openaire +3 more sources
Statistical methods in weak gravitational lensing [PDF]
, 2015 This thesis studies several topics in the area of weak gravitational lensing and addresses some key statistical problems within this subject. A large part of the thesis concerns the measurement of galaxy shapes for weak gravitational lensing and the ...
Kacprzak, T
core
A NEW METHOD FOR MEASURING WEAK GRAVITATIONAL LENSING SHEAR USING HIGHER ORDER SPIN-2 HOLICs [PDF]
The Astrophysical Journal, 2009 Accepted for publication in ApJ; 10 pages, 7 figures, uses aastex ...
Okura, Yuki, Futamase, Toshifumi
openaire +2 more sources
Dark Matter Sterile Neutrino from Scalar Decays
Universe, 2021 We place constraints on DM sterile neutrino scalar decay production (SDP) assuming that sterile neutrinos representa fraction from the total Cold Dark Matter energy density. For the cosmological analysis we complement the CMB anisotropy measurements with
Lucia Aurelia Popa
doaj +1 more source
Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping
Advanced Science, EarlyView.This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron +4 more
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Enhancing oil recovery (EOR) in mature reservoirs is hindered by high interfacial tension (IFT) and oil‐wet rock formations, especially under harsh, high‐salinity conditions. This study aims to overcome these limitations by synthesizing a novel carbon nanotube nanocomposite covalently grafted with polyethylenimine and non‐covalently ...
Mohamed Abu Shuheil +8 more
wiley +1 more source
COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses [PDF]
Astronomy & Astrophysics, 2012 Accepted for publication in Astronomy and Astrophysics abridged ...
Sluse, Dominique +4 more
openaire +2 more sources
Line-of-sight shear in SLACS strong lenses I: shear and mass model parametrisations
The Open Journal of AstrophysicsInhomogeneities along the line of sight in strong gravitational lensing distort the images produced, in an effect called shear. If measurable, this shear may provide independent constraints on cosmological parameters, complementary to traditional cosmic ...
Natalie B. Hogg +3 more
doaj +1 more source
Non‐monotonic jet pinch‐off induced by droplet impact on immiscible liquids
Droplet, EarlyView.The graphical abstract shows the evolution of the central jet following droplet impact and summarizes the non‐monotonic dependence of the critical Weber number on the dimensionless film thickness and Ohnesorge number. Abstract Droplet impact on immiscible liquids can generate a central jet whose pinch‐off behavior plays a crucial role in many advanced ...
Shuo Wang +5 more
wiley +1 more source